513525615324 has 12 divisors (see below), whose sum is σ = 1198226435784. Its totient is φ = 171175205104.

The previous prime is 513525615313. The next prime is 513525615349. The reversal of 513525615324 is 423516525315.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21396900627 + ... + 21396900650.

It is an arithmetic number, because the mean of its divisors is an integer number (99852202982).

Almost surely, 2^513525615324 is an apocalyptic number.

It is an amenable number.

513525615324 is an abundant number, since it is smaller than the sum of its proper divisors (684700820460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513525615324 is a wasteful number, since it uses less digits than its factorization.

513525615324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42793801284 (or 42793801282 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

Subtracting from 513525615324 its reverse (423516525315), we obtain a palindrome (90009090009).

The spelling of 513525615324 in words is "five hundred thirteen billion, five hundred twenty-five million, six hundred fifteen thousand, three hundred twenty-four".